Film box



E. GOLDBERG ET AL I 1,804,500

May 12,. 1931.

FILM BOX Filed Dec. 1, 1927 Patented May 12, 1931 EMANUEL GOLDBERG AND OTTO FISCHER, F DRESDEN, GERMANY FILM BOX Application filed December 1, 1927, Serial 1W0. 282,085, andin- Germany April 21, 1927.

The present invention relates to film holders or magazines for moving picture cameras and more particularly to the so-called daylight casings or dark slides wherein the 5 films manufactured by a producer are packed in light-tight magazines and sold to the owners of cameras whereby the cameras may be loaded in the daylight without injury or exposure of the films and when such films have been run through the camera or exposed, the magazines containing the exposed films may be re'turnedto the producer or others for'the purpose of having the same developed. In this class of film boxes or magazines, a portion of the film strip extends exteriorly of the box in a manner that the operator may readily grasp the strip exposed or extended end portion of the, strip for threading the same through the-film feeding mechansim of the camera. The exposed portion of the film extends through suitable passageways arranged within the magazine and it is the purpose of the present invetnion to provide casings or magazines of this character wherein such fihn passageways will be fully protected against the penetration of light within the casing and consequently, protecting the exposure of the film during transportation or handling of the same.

Another and equally importantobject of the invention is the provision of light-proof passageways for casings or magazines of this character through which a smooth unwinding and re-winding of the film maybe cf fected and one which will be comparatively inexpensive in the cost of manufacture therebyl rendering the same commercially desira e.

With the above and other objects in view the invention consists of certain novel features of construction, combination and arrangements of parts as will be hereinafter more fully described and particularly pointed out in the accompanying drawings, in which Figure 1 is a side elevation of the film b0 embodying the present invention;

Figure 2 is a vertical section through the casing showin by dotted lines the position of the film strip within the casing;

Figure 3 is a vertical transverse section taken on the line A-B of the drawin s in the direction of the arrow points, and,

Figure 4 is a slightly enlarged view taken on the lineO-D of Figure 1 in the direction of the arrow points, as shown.

Referring now more particularly to the accompanying drawings wherein like corresponding parts are designated by similar reference characters throughout the several vlews, I have herein illustrated a film box conslsting of a bottom wall (1 having struck therefrom suitable trunnions or bearings indlcated by the numeral 1 upon which may be rotatably mounted the film bobbins or spools. The box or casing is preferably made from sheet metal, having formed with the bottom (1 thereof a continuous side wall 2 and a portion of this side wall being cut away to form an opening 3 therein. The bottom (I of the box or casing is provided with an extension 4 and the opening 3 within the side wall 2 of the, casing is of greater length than the extension 4 as is illustrated in Figure 2 of the drawings. Formed with and extending at right angles to this extension 4 is a wall 5 which is arranged parallel to and opposite a portion of the wall 2 of the casing, but of the same width as that of the side wall 2 of the casing.

The box is also provided with a cover indicated by the letter In and'this cover is also preferably made from sheet metal having a flange 5 which is adapted, when the cover is placed upon the box, to extend over the outer faces of the wall 2 of the casing in the manner as is better illustrated in Figures 3 and 4 of the drawings. This cover 1s also provided with an extension 6 of the same width as the extension 4 formed with the bottom 11 of the casing and this extension 6 is provided witha flange 7 which is adapted to extend over the wall b in the manner as is illustrated in Figure 4 of the drawings. Struck from the cover is is a rib or heading 8, which beading is relatively wide at the points 9 wherein it contacts with the inner face of the wall 2 of the box forming a recess 10 between this beadin and the fl 10 for receivin the outer edge of the w '2. A portion 0 the bead or rib 8 is reduced in width as is tain a spool of unexposed film indicated by p the numeral 14, whereas the other compartment is to contain a spool 15 upon which is to be wound the exposed film. The film is indicated by the letter f in Figure 2 of the drawings and is provided with an exposed portion 16 which is arranged exteriorly of the casing in order that the operator may thread the same to the feed mechanism of the camera, in a manner which is common and well known in this art.

Mounted within each compartment of the casing are the sheet metal slides a and e which are adapted to extend across the opening 3 of the side wall 2 in the manner as is better illustrated in the Figures 2 and 4 of the drawin s. When the cover is removed from the casing these sheet metal slides e and 6 may be moved within the respective compartments of the casing whereby the film may be easily and readily removed or placed within the casing, but when the cover is applied to the casin or box, each of the slides e and e are seate within the recesses 12 of the cover, but are free to move within these recesses 12 so that thefilm strip may readily pass between the sheet metal shutters or slides. When vthese metal shutters are retained in position by the cover in the manner as is illustrated in Figure 2, they form between their adjacent ends an opening 9 through which may pass the film strip in the manner as is also indicated in Figure 2 of the drawings. In order to prevent the rays of light from entering the box through this opening 9 a small piece of felt indicated by the letter h is placed therein and this felt is retained in position by a'led e or projection 11 formed with the wall (I. 'Ihis strip or ribbon of felt is bent to form a V in cross section so'that the outer or free end of the ledge 13 fits within the apex of this V thereby forming two flexible win s which normally press outwardly against the outer faces m and m of the sheet metal slides e and e. As the film strip passes between the outer faces of these sheet metal shutters e and e and this stri of felt h, the flexible wings or ends of the atter will prevent any rays of light from entering the open- A ing 9 into t e casing.

The extensions 4 and 6 formed with the easin and its cover as well asthe wall d provi e two relatively long passageways a and a through which pass the filin strip and as the outer ends'of these p ways are quite remote from the opening 9 rays of'light will be prevented from..,entering this opening, which latter is further safeguarded by the film strip h.

From the foregoing, it is obvious that I have provided a comparativel inexpensive film box in that it may be ma e or stamped from sheet metal and one which will protect the film contained therein by'preventing any rays of li ht from strikin t e exposed or unexposed film contained t%erein. In the use of this film box the unexposed film is placed therein by the manufacturer or producer of the film and shipped to the consumer Whereupon the consumer may lace this film box with the film containe therein into his camera and after the film has been exposed the box may be withdrawn from the camera and returned to the manufacturer or others who will develop the exposed film whereby. in the handling of said film, it will, at all tlmes, be prevented from ex osure and thereby providing a film box w ich may be loaded in the camera during dayli ht.

The elongated lig t-proof passageways a and a provide-for the egress and ingress of the film to the film openin g of the film box, whereas the sheet metal s ides e and e roject within the passagewa s in order to orm relatively narrow channe whereby any direct rays of light which may enter the outer end of these passageways a and a will be prevented from being reflected through the film openin ginto the box. Thisfilmo ning 9 of t e box is further protecte by means of the dark plush h which permitsof the smooth unwinding and rewinding of the film and owing to its flexible nature, presses against the film in such a manner to absolutely prevent algy rayls of light from passing around the m t rough the openin 9 into the film com artments of the box., he

operator, in placlng this film box within the box, it is obvious that the camera may be loaded or unloaded during the daylight and it is unnecessary for the operator at any timev to remove the cover or film from the boxor otherwise endanger the exposure of the film during the handling of the same.

Manifestly, the construction shown is capable of considerable modification, and such modification as'is within the scope of our claims, we consider within the spirit of our invention. I

compartments therein for and unexposed films, an extension formed We claim a 1. A film box comprising a casing having receiving expose with said casing, said casing having a film opening extension, a ledgearranged within said extension for dividing the same into oppositely extended elongated passageways whereby the film passing through said opening may travel to and from said casing, anda lightproof shutter arranged within-said pamagewa s.

2 A film box comprising a casing consisting of a bottom wall and a side wall formmg a film opening, an extension formed with said bottom wall and extending about said opening, sheet metal slides arranged within said casing and projecting within said-extension in order to form relatively narrow. film passageways, a cover for said casing, and said cover adapted to extend over said extension whereby to retain said slides within the film opening.

3. A film box comprising a casing consisting of a bottom wall and a sidewall, said side wall being cut away to form a film open ing whereby a spool of film may be fed into and out of said casing through said opening,

an extension formed with the bottom wall of the casing, a ledge carried by said extension for dividing the same into elongated passageways, sheet metal slides arranged within said casin and projecting within said passageways, a exible shutter retained by said ledge within the film opening and normally engaging said sheet metal slides, a cover for said casing and means formed with said cover for retaining said sheet metal slides within said film openin substantially as and for the purposes speci ed.

4:. A film box comprising a casing having compartments therein'for receiving an exposed or unexposed film, a portion of, one.

side of the casing being cut away to form a film opening, an extension wall formed on that side of the casin having the film opening therein, said walsubstantially paralleling the opposite side of the casing and defining film passageways in communication with the film opening and terminating at the opposite end portions of said extension wall, and a flexible light-proof shutter arranged within said passageways.

EL GOLDBERG.

OTTO FISCHER,

therein communicating with said chambers therein for receiving a strip 7 of film, said side wall being cut away to form 

